🔍 GetRequireWithVersion

Gets the currently installed version number of a specified package, equivalent to running composer show <package-name> --format=json and parsing the version field.

When to use

Use this when you need to obtain the exact version number of a dependency for version comparison, compatibility checks, or logging. Returns an error when the package is not installed.

Signature

func (c *Composer) GetRequireWithVersion(packageName string) (string, error)

Parameters

Parameter	Type	Description
packageName	string	The package name to query the version for, e.g. symfony/console

Return value

Return value	Type	Description
First return value	string	The installed version number of the package, e.g. v5.4.0
Second return value	error	Returned when command execution fails, the package is not installed, or parsing fails

Example

package main

import (
	"fmt"
	"log"

	"github.com/scagogogo/composer-skills/pkg/composer"
)

func main() {
	comp, err := composer.New(composer.DefaultOptions())
	if err != nil {
		log.Fatalf("Initialization failed: %v", err)
	}

	version, err := comp.GetRequireWithVersion("symfony/console")
	if err != nil {
		log.Fatalf("Failed to get version: %v", err)
	}
	fmt.Printf("symfony/console version: %s\n", version)
}

Advanced

• To only check whether a package is installed (without the version), use IsPackageInstalled.
• To get all available versions of a package (not the installed version), use GetPackageVersionsList.
• To modify the version constraint in composer.json, use UpdatePackageVersion.